PTFE (Teflon) Heater
PTFE (Teflon) heaters are formed by laminating etched foil heating elements between PTFE-coated fiberglass cloths. The resulting heater combines a rugged, non-stick, chemically inert surface with the flexibility and low thermal mass of a thin-profile heating element, in a total thickness of just 0.6 – 1.0 mm.
Request a QuoteWhy Choose PTFE Heaters#
Flexible heaters come in several forms — polyimide (Kapton), silicone rubber, mica, and PTFE (Teflon) being the most common. PTFE heaters stand out in three areas no other flexible heater can match.
Full chemical resistance. The PTFE coating is virtually inert across the entire pH range — from concentrated acids to strong alkalis. This makes PTFE heaters the only flexible heating solution suitable for direct immersion in corrosive process fluids such as acid baths, electrolytes, and plating solutions. Silicone rubber heaters offer IP67 waterproofing, but cannot withstand prolonged chemical exposure.
Non-stick, hygienic surface. The inherent non-stick property of PTFE makes these heaters ideal for cleanroom, pharmaceutical, and food processing applications where residue buildup or contamination is not acceptable. The surface is odorless, hydrophobic, and easy to clean.
Best performance among immersible flexible heaters. While mica heaters can match or exceed PTFE’s temperature range, their open construction is not sealed against liquid ingress. PTFE retains a fully sealed, non-stick surface while supporting continuous operation at 260°C — well beyond the limits of silicone rubber (200°C). This makes PTFE the only flexible heater type suitable for high-temperature and corrosive or hygienic environments.
The result is a heating element that works where others fail — in chemically aggressive, high-temperature, and hygiene-critical environments.
Technical Specification#
| Parameter | Value | Parameter | Value | Parameter | Value |
|---|---|---|---|---|---|
| Input voltage | 12V – 400V | Max temperature | 260°C | Thickness | 0.6 - 1.0 mm |
| Watt density | ≤ 6.0 W/cm² (with heat sink) | Min temperature | -70°C | Dielectric strength | 1000–2500 VAC |
| Watt tolerance | ≤ ±5% | Available colors | black, brown, white, blue | Surface | non-stick, hydrophobic |
| Parameter | Value |
|---|---|
| Temperature Sensor | RTD / Pt100, thermistor / NTC, thermocouple, thermal switch |
| Installation | mechanical clamping, factory vulcanized to metal profiles |
| Lead wires | Teflon insulated, different plug sets / terminations available |
| Approvals | UL, CE |
Applications#
- Chemical processes: acid bath, electrolysis, plating, anodization and polishing — direct immersion in corrosive fluids
- Drum and tank heaters for chemicals and process fluids in dust-free environments
- Pipe and vessel heating in corrosive or hygienic environments
- Cleanroom and pharmaceutical heating where non-stick, residue-free surfaces are required
- Sterilization equipment and medical device manufacturing
- High-temperature industrial process heating up to 260°C where silicone or polyimide heaters are insufficient
- Replacing conventional immersion heaters in space-constrained installations